FREEGEOIP API endpoint is deprecated

My site is https and is calling http, making my site Mixed Content/unsecured. I have tried everything possible to replace this endpoint unsuccessfully. Please inform me of how I can fix this. Thanks!

Mixed Content: The page at ‘https://www.ohasurfskate.com/’ was loaded over HTTPS, but requested an insecure script ‘https://freegeoip.net/shutdown’. This request has been blocked; the content must be served over HTTPS.

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